Analysis of information sources in references of the Wikipedia article "토베 얀손" in Korean language version.
In 1956, [Jansson] met Tuulikki Pietilä ("Tooti"), a prolific graphic artist and engraver. They would remain partners for forty-five years, until Jansson's death. But, as Westin and Svensson put it, "anyone who lived with Tove Jansson also had to live with her family". Her mother, nicknamed Ham, stayed with Jansson on and off. Even as a teenager, preparing to go away to school, Jansson had worried about her mother. In a letter from 1961, she describes the stress of managing both Tooti and Ham in their "all-female household." She felt that it had become impossible to please one without displeasing the other, and during a time of intense strife she wrote to a friend, "Sometimes I think I hate them both and it makes me feel ill".
